English pronunciation of “fortieth”

fortieth

uk How to pronounce fortieth ordinal number in British English
us How to pronounce fortieth ordinal number in American English
uk How to pronounce fortieth noun in British English
us How to pronounce fortieth noun in American English
us How to pronounce fortieth adjective in American English

(English pronunciations of “fortieth” from the Cambridge Advanced Learner’s Dictionary & Thesaurus and from the Cambridge Academic Content Dictionary, both sources © Cambridge University Press)